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MDEV-26352 : Add new thread states for certain WSREP scenarios

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This adds following new thread states:
* waiting to execute in isolation - DDL is waiting to execute in TOI mode.
* waiting for TOI DDL - some other statement is waiting for DDL to complete.
* waiting for flow control - some statement is paused while flow control is in effect.
* waiting for certification - the transaction is being certified.
This commit is contained in:
Jan Lindström 2021-08-20 12:54:53 +03:00
commit 1bc82aaf0a
15 changed files with 137 additions and 51 deletions
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6
sql/wsrep_trans_observer.h
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@ -1,4 +1,4 @@
/* Copyright 2016-2019 Codership Oy <http://www.codership.com>
/* Copyright 2016-2021 Codership Oy <http://www.codership.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -272,12 +272,14 @@ static inline int wsrep_before_commit(THD* thd, bool all)
WSREP_DEBUG("wsrep_before_commit: %d, %lld",
wsrep_is_real(thd, all),
(long long)wsrep_thd_trx_seqno(thd));
THD_STAGE_INFO(thd, stage_waiting_certification);
int ret= 0;
DBUG_ASSERT(wsrep_run_commit_hook(thd, all));
if ((ret= thd->wsrep_cs().before_commit()) == 0)
{
DBUG_ASSERT(!thd->wsrep_trx().ws_meta().gtid().is_undefined());
if (!thd->variables.gtid_seq_no &&
if (!thd->variables.gtid_seq_no &&
(thd->wsrep_trx().ws_meta().flags() & wsrep::provider::flag::commit))
{
uint64 seqno= 0;